4Working with 1 dough square at a time, spoon slightly less than 1/4 cup chicken mixture onto center. Fold 1 corner of square over filling; bring opposite corner over first corner, tucking under roll to seal. Leave other ends open. Place on cookie sheet. In small bowl, beat egg and water until well blended; lightly brush over piadinis.

4Working with 1 dough square at a time, spoon slightly less than 1/4 cup chicken mixture onto center. Fold 1 corner of square over filling; bring opposite corner over first corner, tucking under roll to seal. Leave other ends open. Place on cookie sheet. In small bowl, beat egg and water until well blended; lightly brush over piadinis.